從0到1：神經網絡實現圖像識別（中）

」. . .  we may have knowledge of the past and cannot control it; we may control the future but have no knowledge of it.」 — Claude Shannon 1959 往者可知然不可諫，來者可追或未可知   上篇介紹了神經網絡的理論基石 - 感知機（perceptron）模型；感知

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